Partially Replacement of Silica Sand with Excellent Aggregate by Increasing Stability and Lack of Natural Aggregates

摘要

The one of the most important material in the construction material is concrete. That is used in the worldwide for all engineering works includes the infrastructures. It becomes as a cheap material and widely available by using it for infrastructures developments all over the world. That causes the shortage of the natural aggregates. Those materials are available in high cost, so to reduce the needs of those fine and course aggregates. This project work replaces the sand in partially with silica sand in percentages (10, 15 and 20%) in the concrete of M grade. The specific mixes are tested and then it is compared with the conventional concrete. 25 The compressive test is recorded.